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CERN Document Server 194 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 1.35 δευτερόλεπτα. 
1.
Observation of a cross-section enhancement near the $t\bar{t}$ production threshold in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
A measurement is presented of $t\bar{t}$ production in the invariant-mass region near the pair production threshold, $m_{t\bar{t}} \sim 345\,\mathrm{GeV}$, in final states with two charged leptons and multiple jets. [...]
ATLAS-CONF-2025-008. - 2025 - mult..
Original Communication (restricted to ATLAS) - Full text
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2.
Measurement of the top-quark pole mass in dileptonic $t\bar{t}+ 1\text{-jet}$ events at $\sqrt{s}=13$ TeV with the ATLAS experiment / ATLAS Collaboration
A measurement of the top-quark pole mass $m_{t}^\text{pole}$ is presented in $t\bar{t}$~events with an additional jet, $t\bar{t}+1\text{-jet}$, produced in $pp$ collisions at $\sqrt{s}=13$ TeV. [...]
arXiv:2507.02632 ; CERN-EP-2025-135. - 2025 - 50.
Fulltext - Previous draft version - Fulltext
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3.
Measurements of differential cross-sections of $WbWb$ production in the dilepton channel in $pp$ collisions at $\sqrt{s}$ = 13 TeV using the ATLAS detector / ATLAS Collaboration
At the Large Hadron Collider, the $WbWb$ final state is expected to be dominated by $t\bar{t}$ production with a contribution from single-top processes. [...]
arXiv:2506.14700 ; CERN-EP-2025-094. - 2025 - 64.
Fulltext - Previous draft version - Full text - Fulltext
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4.
Constraining off-shell Higgs boson production and the Higgs boson total width using $WW\to \ell\nu\ell\nu$ final states with the ATLAS detector / ATLAS Collaboration
A measurement of off-shell Higgs boson production is performed in the $H^{*} \rightarrow WW$ channel. [...]
arXiv:2504.07710 ; CERN-EP-2025-059. - 2025 - 43.
Fulltext - Previous draft version - Fulltext
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5.
Searches for direct slepton production in the compressed-mass corridor in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
This paper presents searches for the direct pair production of charged light-flavour sleptons, each decaying into a stable neutralino and an associated Standard Model lepton. The analyses focus on the challenging "corridor" region, where the mass difference, $\Delta m$, between the slepton ($\tilde{e}$ or $\tilde{\mu}$) and the lightest neutralino ($\tilde{\chi}^{0}_{1}$) is less or similar to the mass of the $W$ boson, $m(W)$, with the aim to close a persistent gap in sensitivity to models with $\Delta m \lesssim m(W)$. [...]
arXiv:2503.17186; CERN-EP-2025-039.- Geneva : CERN, 2025-08-06 - 66 p. - Published in : JHEP 2508 (2025) 053 Fulltext: 2503.17186 - PDF; document - PDF; External link: Previous draft version
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6.
Need of reference proton data for the DICE/NA60+ experiment / Scomparin, Enrico (Universita e INFN Torino (IT)) ; Usai, Gianluca (Universita e INFN, Cagliari (IT))
In this document we motivate the need for data taking in proton-nucleus at collision energies per incident nucleon corresponding to those of nucleus-nucleus interactions. With a non-expert audience in mind, we show that this is a general requirement for all experiments working with relativistic heavy-ion collisions and further demonstrate this case for a few observables that are crucial for the NA60+ experiment at the CERN SPS..
CERN-PBC-Notes-2025-003.- Geneva : CERN, 2025 - 7. Fulltext: PDF;
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7.

CMS-PHO-EVENTS-2024-027
© 2024 CERN, for the benefit of the CMS Collaboration 		Display of a dileptonic top quark pair event seen in CMS
Event seen as part of a measurement of the dineutr [...]
15/07/2024
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8.
Recent results from ultra-peripheral lead-lead collisions with ATLAS / Maj, Klaudia (AGH University of Krakow (PL))
Relativistic heavy-ion beams at the LHC are accompanied by a large flux of equivalent photons, leading to multiple photon-induced processes.\ This report presents a series of measurements of such processes performed by the ATLAS Collaboration. [...]
ATL-PHYS-PROC-2024-037. - 2024.
Original Communication (restricted to ATLAS) - Full text
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9.
Measurement of dilepton production from photon fusion processes in UPC in Pb+Pb collisions with the ATLAS detector / Grabowska-Bold, Iwona (AGH University of Krakow (PL)) /ATLAS Collaboration
Relativistic heavy-ion beams at the LHC are accompanied by a large flux of equivalent photons, leading to multiple photon-induced processes. This talk presents a series of measurements of dilepton production from photon fusion performed by the ATLAS Collaboration. [...]
ATL-PHYS-SLIDE-2023-658.- Geneva : CERN, 2024 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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10.
Search for leptonic decays of dark photons at NA62Search for Leptonic Decays of Dark Photons at NA62 / NA62 Collaboration
The NA62 experiment at CERN, configured in beam-dump mode, has searched for dark photon decays in flight to electron-positron pairs using a sample of $1.4 \times 10^{17}$ protons on dump collected in 2021. No evidence for a dark photon signal is observed. [...]
arXiv:2312.12055; CERN-EP-2023-296.- Geneva : CERN, 2024-09-11 - 10 p. - Published in : Phys. Rev. Lett. 133 (2024) 111802 Draft (restricted): PDF; Fulltext: CERN-EP-2023-296 - PDF; 2312.12055 - PDF; Publication - PDF;
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